Patents by Inventor Hua-Cheng Chuang

Hua-Cheng Chuang has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230012636
    Abstract: A hydrodynamic bearing structure is provided. The hydrodynamic bearing structure includes a bearing body, a shaft hole, at least one oil guide groove assembly, at least one air escape unit, and a recess. The shaft hole is formed in the bearing body and penetrates through the bearing body to two ends of the bearing body. The oil guide groove assembly is formed on an inner wall of the shaft hole. The air escape unit is disposed on an outer wall of the bearing body, and has a groove or a tangent plane. The recess is formed at one of the two ends (e.g., a bottom end or a top end) of the bearing body. The recess is spatially communicated with the air escape unit so that an exhaust passage is formed between an axis of the bearing structure and the air escape unit.
    Type: Application
    Filed: October 8, 2021
    Publication date: January 19, 2023
    Inventors: YU-YUEH CHEN, CHING-HUI YU, HUA-CHENG CHUANG
  • Patent number: 11549553
    Abstract: A hydrodynamic bearing structure is provided. The hydrodynamic bearing structure includes a bearing body, a shaft hole, at least one oil guide groove assembly, at least one air escape unit, and a recess. The shaft hole is formed in the bearing body and penetrates through the bearing body to two ends of the bearing body. The oil guide groove assembly is formed on an inner wall of the shaft hole. The air escape unit is disposed on an outer wall of the bearing body, and has a groove or a tangent plane. The recess is formed at one of the two ends (e.g., a bottom end or a top end) of the bearing body. The recess is spatially communicated with the air escape unit so that an exhaust passage is formed between an axis of the bearing structure and the air escape unit.
    Type: Grant
    Filed: October 8, 2021
    Date of Patent: January 10, 2023
    Assignee: TUNG PEI INDUSTRIAL CO., LTD.
    Inventors: Yu-Yueh Chen, Ching-Hui Yu, Hua-Cheng Chuang